{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["RNA", "cell line", "protein", "cell type", "DNA"], "input": "Nuclear extracts assayed for the presence of ISRE binding factors by electrophoretic mobility shift assays show that ISGF3 is induced by IFN-alpha within 6 h from undetectable basal levels in untreated U937 cells ."}
{"RNA": [], "cell line": ["U937 cells"], "protein": ["ISRE binding factors", "ISGF3", "IFN-alpha"], "cell type": [], "DNA": ["ISRE"]}